Global biogeographic sampling of bacterial secondary metabolism - Charlop-Powers, Zachary; Owen, Jeremy G.; Reddy, Boojala Vijay B.; Ternei, Melinda A.; Guimarães, Denise O.; Frias, Ulysses A. de; Pupo, Mônica Tallarico; Seepe, Prudy; Feng, Zhiyang; Brady, Sean F. (eLIFE, 2015)